Wednesday, May 14, 2014

Video: Generator Protection

       Generator is the heart of an electrical power system. As it converts mechanical energy into its electrical equivalent, which is further distributed at various voltages. It therefore requires a ''prime mover'' to develop this mechanical power and this can take the form of steam, gas or water turbines or diesel engine.

Faults:
Electrical:
Stator insulation failure
overload
overvoltage
unbalanced load
rotor faults
loss of excitation
loss of synchronism

Mechanical:
 failure of prime mover
low condenser vacuum
lubrication oil failure
loss of boiler firing
over speeding
rotor distortion
excessive vibration

file size: 84 mb

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